B3 - Mutations: The Basics


What is a mutation?

A mutation is a change in the DNA base sequence.

What happens if a mutation occurs within a gene?

The production of the protein it codes for may be disrupted, or another protein may be produced instead.

Why are most mutations harmful?

  • producing the wrong protein can prevent an important reaction from occuring.
  • producing no protein at all can also stop a reaction from occuring.
  • if a mutation occurs in reproductive…


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